Allelopathic effects of cruciferous plants in crop rotation

Allelopathic suppression of wheat and mustard byRumex dentatus ssp.klotzschianus

“…Key to mumber: 1, p-hydroxybenzoic acid; 2, chlorogenic acid; 3, vanillic acid; 4, syringic acid; 5, o-coumaric acid; 6, p-coumaric acid; 7, ferulic acid; 8, caffeic acid. equal possibility that wheat (Muminovic, 1991) and other crucifers (Grodinsky, 1992) including mustard might also be allelopathic to Rumex and other associated weeds. This possibility was however not tested in the present study.…”

Autotoxicity in Vegetables and Ornamentals and Its Control

“…This phenomenon is evidenced in agricultural production especially in the production of horticultural crops (Grodzinsky, 1992;Tsuchiya, 1990;Young, 1984). It leads to resurgence of disease pest, exhaustion of soil fertility, and developing chemical interference in the rhizosphere referring allelopathy (Hegde & Miller, 1990;Komada, 1988;Takahashi, 1984;Young, 1984).…”

Significance of Allelopathy in Crop Rotation

“…), cucumber (Cucumis sativus L.), lettuce and several other crops (Einhellig, 1985). Grodzinsky (1992) reported black mustard (Brassica nigra [L.] Koch.) contributes to the accumulation of allelochemicals in soil and before they are recommended for any rotation system attention must be paid to this factor.…”

“…Several vegetables suppress weeds but on the other hand they enhance the development of soil microflora and assist in the survival of useful insects (Grodzinsky, 1992). Winter rape (Brassica napus var.…”